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vendor/symfony/form/DependencyInjection/FormPass.php

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+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Form\DependencyInjection;
+
+use Symfony\Component\DependencyInjection\Argument\IteratorArgument;
+use Symfony\Component\DependencyInjection\Compiler\PriorityTaggedServiceTrait;
+use Symfony\Component\DependencyInjection\Compiler\ServiceLocatorTagPass;
+use Symfony\Component\DependencyInjection\ContainerBuilder;
+use Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface;
+use Symfony\Component\DependencyInjection\Definition;
+use Symfony\Component\DependencyInjection\Exception\InvalidArgumentException;
+use Symfony\Component\DependencyInjection\Reference;
+
+/**
+ * Adds all services with the tags "form.type", "form.type_extension" and
+ * "form.type_guesser" as arguments of the "form.extension" service.
+ *
+ * @author Bernhard Schussek <bschussek@gmail.com>
+ */
+class FormPass implements CompilerPassInterface
+{
+    use PriorityTaggedServiceTrait;
+
+    private $formExtensionService;
+    private $formTypeTag;
+    private $formTypeExtensionTag;
+    private $formTypeGuesserTag;
+
+    public function __construct($formExtensionService = 'form.extension', $formTypeTag = 'form.type', $formTypeExtensionTag = 'form.type_extension', $formTypeGuesserTag = 'form.type_guesser')
+    {
+        $this->formExtensionService = $formExtensionService;
+        $this->formTypeTag = $formTypeTag;
+        $this->formTypeExtensionTag = $formTypeExtensionTag;
+        $this->formTypeGuesserTag = $formTypeGuesserTag;
+    }
+
+    public function process(ContainerBuilder $container)
+    {
+        if (!$container->hasDefinition($this->formExtensionService)) {
+            return;
+        }
+
+        $definition = $container->getDefinition($this->formExtensionService);
+        if (new IteratorArgument(array()) != $definition->getArgument(2)) {
+            return;
+        }
+        $definition->replaceArgument(0, $this->processFormTypes($container, $definition));
+        $definition->replaceArgument(1, $this->processFormTypeExtensions($container));
+        $definition->replaceArgument(2, $this->processFormTypeGuessers($container));
+    }
+
+    private function processFormTypes(ContainerBuilder $container, Definition $definition)
+    {
+        // Get service locator argument
+        $servicesMap = array();
+
+        // Builds an array with fully-qualified type class names as keys and service IDs as values
+        foreach ($container->findTaggedServiceIds($this->formTypeTag, true) as $serviceId => $tag) {
+            // Add form type service to the service locator
+            $serviceDefinition = $container->getDefinition($serviceId);
+            $servicesMap[$serviceDefinition->getClass()] = new Reference($serviceId);
+        }
+
+        return ServiceLocatorTagPass::register($container, $servicesMap);
+    }
+
+    private function processFormTypeExtensions(ContainerBuilder $container)
+    {
+        $typeExtensions = array();
+        foreach ($this->findAndSortTaggedServices($this->formTypeExtensionTag, $container) as $reference) {
+            $serviceId = (string) $reference;
+            $serviceDefinition = $container->getDefinition($serviceId);
+
+            $tag = $serviceDefinition->getTag($this->formTypeExtensionTag);
+            if (isset($tag[0]['extended_type'])) {
+                $extendedType = $tag[0]['extended_type'];
+            } else {
+                throw new InvalidArgumentException(sprintf('"%s" tagged services must have the extended type configured using the extended_type/extended-type attribute, none was configured for the "%s" service.', $this->formTypeExtensionTag, $serviceId));
+            }
+
+            $typeExtensions[$extendedType][] = new Reference($serviceId);
+        }
+
+        foreach ($typeExtensions as $extendedType => $extensions) {
+            $typeExtensions[$extendedType] = new IteratorArgument($extensions);
+        }
+
+        return $typeExtensions;
+    }
+
+    private function processFormTypeGuessers(ContainerBuilder $container)
+    {
+        $guessers = array();
+        foreach ($container->findTaggedServiceIds($this->formTypeGuesserTag, true) as $serviceId => $tags) {
+            $guessers[] = new Reference($serviceId);
+        }
+
+        return new IteratorArgument($guessers);
+    }
+}